John wolf



J. WOLF.

LOCK.

APPLICATION FILED MAY12, 1919.

Patented Aug. 12,1919.

b WW JOHN WOLF, 0F TOPEKA, KANSAS.

LOCK.

Specification of Letters Patent.

Patented Aug. 12, 1919.

Application filed May 12, 1919. Serial No. 296,374.

To all whom it may concern:

Be it known that I, JOHN WOLF, a citizen of the United States, residing at Topeka, in the county of Shawnee and State of lKansas, have invented certain new and useful Improvements in Locks, of which the following is a full,clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

The present invention is directed to improvements in locks, and Particularly to trunk locks, having for its object to provide a key-operated lock which will be simple and durable, one that will withstand considerable abuse with the rough handling of the trunk, and one possessing further and other advantages better apparent from the following detailed description in connection with the accompanying drawings in which- Figure 1 represents a top plan of a wardrobe trunk showing my invention applied thereto; Fig. 2 is a front elevation of the upper end of the trunk; Fig. 3 is a somewhat enlarged longitudinal section through the lock on'the line 38 of Fig. 1; Fig. 4: is a view similar to Fig. 3, showing however in side elevation the casing in which the latch-bolt is mounted; Fig. 5 is a top plan of the keeper and the fitting to which is hinged the leaf or casing in which the latch-bolt is mounted; Fig. 6 is a bottom plan of the casing or looking leaf in which the latch-bolt is mounted; Fig. 7 is a top plan of thelocking leaf or latch-bolt casing still further enlarged, a portion of thetop wall being broken away; Fig. 8 is a bottom plan of the locking leaf with the bottom wall removed to expose the interior operat- 'ing members; Fig. 9 is a longitudinal middle section on the line 99 of Fig. 7 with the latch-bolt in side elevation; Fig. 10 is a similar view with the latch-bolt however in Referring to the drawings,'T represents the main section of a wardrobe trunk, T the shorter section hinged thereto, and L, the top lid hinged to the section T and adapted to be locked to the section T, as well understood in the art. The look A by whlch the lid L islocked to the trunk sectlon T forms the subject-matter of the presentinvention, the details of the lock being shown in Figs. 5 to 13 inclusive. Referring to said figures, 1 represents the keeper member of the lock, the same being secured to the top of the trunk section T, said keeper being brought into cooperating relation to the plate or mounting 2 secured to the lid L, said plate being provided with side walls or wlngs 3 and serving as a mounting for the locking hinge-leaf or latch-bolt casing 4:, the latter being protected by the walls 3 when the leaf is swung against the plate to bring thelatch-bolt 5 thereof into position for looking with the keeper 1. The leaf 4: is secured between the terminals of the walls 3 farthest removed from the keeper, by a hinge-pin 6, said leaf being automatically forced outwardly upon the withdrawal of the latch-bolt 5 from its keeper 1, by a flexed spring 7 having one end secured to the bottom of the plate 2 adjacent to the hinge axis of the leaf, the free end of the spring operating through a slot or opening 0 formed in the plate and engaging the bottom of the leaf. The latch-bolt 5 is provided with, or forms the outer terminal of a frame or yoke 5 the inner cross-member of which carries a pair of lugs 8 between which the yoke is engaged by the adjacent terminal of a compression spring 9 the opposite end whereof is received by a socket h adjacent the hinge axis of the leaf 4. The leaf4 is in effect a casing or hollow member the inner and outer walls whereof are connected by a brace pin or strut 10, there being disposed between said strut and the cross member of the yoke, a post 11 for receiving the socket of the stem is of a suitable key inserted into the leaf through the key hole m, the key-stem being provided with a suitable bit 13, as well understood in the art. The ends of the cross member of the yoke 5 engage the side walls of the leaf 4i, and the bottom of said cross member is pro vided with feet 12, 12, engaging the bottom Wall of the leaf, this arrangement serving to guide the yoke in the leaf and prevent binding in any direction. The inner wall of the cross member of the yoke is provided with a guard 1-1 freely permitting the bit 13 of the key to pass by the same, but obviously arresting or preventing the passage of 'a key-bit to which said guard does not conform, Mounted rotatably on the post-11:, and resting on the bottom or inner wall of the hollow leaf 4:, is a dog 15 of a shape substantially as shown in Figs. 8, 11, and 12, one terminal of the dog being providedwith a projection or tooth 16 adapted to be engaged by the enlarged terminal of the keybit 13, and provided at an intermediate point along the edge thereof with a guard or lug 17 between which and the yoke-guard 14: the key-bit normally enters when once inserted into the key-hole, said lug 17 preventing the rotation of the key in the wrong direction.

. The opposite end of the dog is provided with a lug or finger 18 adapted to engage a lug 19 on the adjacent arm of the yoke 5 whereby the yoke with its bolt 5 is forced inwardly with a turning of the key in pro-per direction, andthe bolt withdrawn or disengaged from the keeper 1. The valances 20 are secured to the section T and lid L, a slight offset a being formed in the plate 2 to accommodate the thickness of the metal band from which the valance is constructed (Fig. 13).

. The operation is simple and may be readily understood by reference to Figs. 7', 8 and 10. By inserting the stem is of a suitable key into the keyhole m, the bit 13 of the key will naturally enter between the lug or guard 17 of the dog 15 and the guardl l of yoke 55" to which the bolt-head 5 is secured. By turning the key in the direction indicated by the arrows in Figs. 7 and 8, the key-bit 13 "will freely pass the guard 14 of'the yoke 5" and eventually strike or engage the tooth or projection 16 of the dogs 15, continued rotation of the key causing the bit 13 to oscillate still farther and turn the dog about the axis of the post 11in proper direction to cause the finger 18at the opposite end of'the dog to press against the lug 19 of the yoke 5 andpforce the latter inward against the.v tension. of the spring 9, thereby compressing the spring and causing a withdrawal of the bolt 5 from the keeper 1. Once they bolt is withdrawn from the keeper, the flexed spring 7 bearing against the inner or bot tom wall of the. hinged leaf 4; assertsitself, forcing said leaf or latch-bolt casing (now released from the keeper) outwardly, the

leaf oscillating about the hinge pin 7 and assuming a position substantially as shown by the dotted lines in Fig. 4. This unlocks the look A and leaves the lid L free to be swung to open position. The withdrawal of the key-of course permits the -bolt-operating parts to resume their original position, the spring 9 forcing the bolt out of the leaf or casing W'hen subsequently the lid is swung to closed position, the bevel or inclined; face t of; the bolt will ride over the edge e of the keeper, thus compressing the spring 9 until the edge of the bolt passes off the edge of the keeper, after which the springwilL automatically force the bolt under the keeper as well understood in the art. In this respect the. action is not unlike that of the majority of latch-bolts known to the trade. Obviously, I may resort to many changes in details without affecting the nature or spirit. of the invention.

Having described my invention what I claim is:

1. In a lock of the character described, a hinged casing, a latch-bolttraversing a wall of the casing, a keeper for the bolt,,a yoke secured to thebolt and operating in the easing, a post in the casing within the yoke, a dog mounted rotatably on said post and adapted to be rotatedin a given direction by the bit of a key inserted through. a. key-hole in the casing wall and passedover the arbor aforesaid, av guard" on the yoke permitting rotation ofthe key in proper direction to rotate the dog, aguard on the dog preventing rotation ofthe key in the opposite directiointhe parts being disposed. relatively to the key-holeto allow insertion of thekey-bit between the guards aforesaid, atooth'on the dog adapted to be engagedby the key-bit, a lug on the yoke, a finger onthe dogfor engaging theilug with a. rotation of'thedog by the key, and aspringbearing against the yoke ata point opposite from the bolt, for forcing the yokean d bolt outwardly upon release of the dog, whereby the bolt, may enter the keeper with a closingmovement of the casing.

2. In a lock of the character described, a keeper, a latch-lock casing hingedto oscil.- late about a fixed axis, the outer wallof the casing being provided with a key-hole, a post projecting from the opposite wall opposite the key-hole and adapted tobe engaged by the socket-of a key stem provided with a key-bit, a latch-bolt operating through a terminal wallofthe -casing and adapted to engage the keeper, a yoke secured mounted rotatably on the post and terminating respectively in a finger and a tooth, a guard or lug on the dog positioned relatively to the key-guard on the yoke to cause the key-bit to come between it and said keyguard, a lug on one of the arms of the yoke engaged by the finger on the dog, the keybit being adapted to engage the tooth 011 the dog and impart rotation thereto whereby the yoke is forced toward the rear of the casl0 In testimony whereof I affix my signature,

in presence of two Witnesses.

JOHN WOLF.

Witnesses:

CHARLES PASHO, CHARLES PACKET.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latente, Washington, D. 0." 

